Am 02.10.2016 um 16:46 schrieb Per olof Ljungmark:
What is the best way to debug a SERVFAIL problem? I have tried to ramp
up the trace level a lot but that did not return anything useful.
It is only one zone in question, namely the PTR for our external subnet.
What puzzles me the most is that a secondary on the same subnet answers
just fine for thesame query. All forwards zones resolves good as well.
BIND version is 9.10.4-P3
most likely some error in the zonefile, look at named logs
that the secondary answers is normal because if the master refuses to
load a zone it never reaches the slave and start to fail there only when
it expires before the error is fixed
hence master/slave while in most environemnts you could technically
generate the identical zone-files on all nameservers but then with the
same errors and so all would fail (in case of PTR and mailservers with
horrible results)
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